Journal-bearing.



A. 'STREETER. JOURNAL BEARING.

APPLICATION EILED APR. 14, 1902.

PATEHTED APR, '7, 1908 nnrrnn s rrirss tram OFFICE.

ALFRED L. STREETE-R, OF CHICAGO, ILLINOIS.

JOURNAL-Benefits.

Application filed April 1d; 1902.

' To all whom it may concern:

"-Of'Illinois, have invented a Journal-Bearing, .of which the tollowing 1s a specification.

This invention relates to joiirnal brasses 1nd relates particularly to journal bearing. for freight cars and the lilrc.

. Among the objects of the invention are to reduce the amount of scrap in journal bearings when said bearings are worn out; and to provide for limited' play of the axle rclatively to the truck frame, thereby materially reducing the wear on the flanges of thewheels in rounding curves and the like.

To thisend my invention consists of the various features, combinations of features and details of construction hereinafter described and claimed.

In the accompanying drawings, a journal bearing of my invention is fully illustrated.

Figure l is a top plan view of a journal bearing of my invention. Fig. 2 is a side view thereof. Fig. 3 is a longitudinal sectional view thereof on the line 3-3 of Fig. l.

Fig. 4 is an end view thereof; and Fig. 5 is a transverse sectional View thereot on the line 55 of Fig. l.

- A journal bearing of my invention consists of two separate parts, the bearing proper 1, which forms a saddle resting on the axle, and a cap 2 inserted between said bearing proper 1 and the wedge 3. The section 1 is co1ninonly made of brass. V The part 2 may be made of brass, steel or other strong metal.

Formed at the center of the back of the bearing proper 1 is a spherical boss 4, which is adapted to engage a corresponding spherical recess 5 in the cap The recess 5 is preferably of larger radius than the boss at, thus forming a clearance space between said boss and the sides of said. recess, as shown at 6. Preferably, also, clearance spaces 7 are provided between the bearing roper i and the cap2, said spaces becoming a-rger remote from the boss 4. With this construction it y is obvious that said bearing proper and cap may turn slightly upon the boss 4 as a pivot without lifting, thus makingprovision for the desired play of the axle relatively to the truck frame in rounding curves.-

"While I have herein shown the boss 4 on the bearing proper and therecess 5 formed in the cap, it is obvious that this arrange- Specification of Letters Patent.

Patented April 7, 1908.

Serial No. 102,835.

went may be reversed without inany way departing from my invention.

in order to prevent endwise displacement ofthe cap 2 and bearing proper 1 relatively to each other, they are preferably )rovided with opposed shoulders, which willl movement of said cap relatively to said hearing proper, when in use. As shown, flanges 5% are formed at the ends of the bearing proper 1 which engage corresponding "recesses 9 in the cap 2.

The dimensions of the bearing proper 1 and of the cap 2 are such that together they will conform to the M. B. standards, thus providing for replacing them with M. C. B. standard bearings in case bearings of my invention are not available. The caps 2 may be used almost indefinitely, thus when it is desired to renew a bearing it is only necessary to replace the bearing proper 1 which will effeet a saving in the amount of scrap each time the bearing proper is renewed equal to the weight of the cap 2. v v

While, for convenience of illustration, 1

have, in. the drawings, shown my improved pivot hearing as applied between the bearing brass proper 1 and the cap 2, it is obvious that, as regards this feature of my invention, it is immaterial where the same is applied and that the sanie results would be attained by applying said pivot bearing between other members of the journal hearing, as between a bearing brass of usual form and the Wedge. Furthermore, while I have herein shown the boss at and recess 5 as forming segments of spheres, that is, as forming curves of uniform radius, I do not desire to limit myself to this construction, as the same action would result with other forms of rounded boss and recess.

1'. A hearing brass for car journals consisting of two separate sections, a lower bearing section to receive the. journal and an upper section to contact with the wedge, which said upper section overlies said lower section, said sections being provided. one with a rounded imit the ends,

tween the overlying projecting one with flanges. and the other with shouldersopposed thereto, the two sections constltut-nig a unit conforming exterior to the Master Car Builders standard bear ng rass, substantially as. described.

2. A journal bearing comprising members one of which overlies and is supported upon theotlren. there being a pivot tween said members and clearance spa-(res ing such that tions will be limited by contact of the overlying projecting portions thereof outside of said pivot bearing, substantially described.

3. A journal bearing comprising members one of which overlies and is supi'iorted upon the other, there being a pivot bearing be tween said. members end clearance spaces bemrtions thereof in all directions outside of the pivot bearing, the relation being such that relative movement of" said sections will be limited by 'conthct of the overlying projecting portions t-hereol' outside of said pivot bearing, substantially as described.

at. A journal bearing one of Which overlies and is supported upon the other, said members being provided one with arounded boss and the other with a cor-- responding recess of less depth than the height of the boss, thereby providing clean unc e between the overlying projecting por tions of said lTilGllllJQI'S in all directions outside of said boss and recess, the relation being such that relativemovement of said incinbers will be limited by contact of the overly-- ing projecting portions of said nurmbersomside of said boss and recess, substantially as described.

5. A journal bearing comprising members, one of which overlies and is supported upon the other, said members being provided one with a rounded boss and the other with a corresponding recess of less depth than the bearing be-' tween the overlying pro ecting portions there of outside oi the pivot bearing, the relation berelative movement of said sec.

comprising members sweetie members outside of said boss and recess, said boss being loosely fitted to said recess and the relation. being such that relative movement of said members will be limited'by contact of opposed surfaces of said members outside of said boss and recess.-

6. A journal bearing comprising members one of which overlies'and is supported upon the other, said members being provided one with a rounded boss and the other with a corresponding recess of less depth than the height of said boss and of greater radius, thereby providing clearance between the overlying surfaces ofsaid members outside of said boss and recess, the relation being such that relative movement oisaid members Will be lin'iite'd by eontactbf the overlying sur' faces of said members outside of said boss and recess, substantially as described.

'7. A journal bearing comprising members one of which overlies and is-supported upon the other, said members being provided one with a rounded boss and the other With a corresponding recess of less depth than the height of the boss providingclearance between the overlying surfaces of said members in all directions outside of said cess, the relation being such that relative movement of said members will be limited by contact of the, overlying surfaces of said members outsideof said boss and recess, and said members being also provided at their ends one with flanges and the other with" shoulders opposed thereto, described.

In testimony, that my invention, I alilx my ence of two subscribing Witnesses, day of April, A. D. 1902.

ALFRED L. STREETER. lVitnesses:

.M. S. SOMERVILLE,

Jenn A. M0KE0WN,

substantially as I claim the foregoing as signature in presthis 11th boss and re-v 

